#!/bin/bash
# Copyright 2013
# Charles Steinkuehler <charles@steinkuehler.net>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

dtbo_err () {
	echo "Error loading device tree overlay file: $DTBO" >&2
	exit 1
}

pin_err () {
	echo "Error exporting pin:$PIN" >&2
	exit 1
}

dir_err () {
	echo "Error setting direction:$DIR on pin:$PIN" >&2
	exit 1
}

PRU=/sys/class/uio/uio0
echo -n "Waiting for $PRU "

while [ ! -r $PRU ]
do
    echo -n "."
    sleep 1
done
echo OK

if [ ! -r $PRU ] ; then
	echo PRU control files not found in $PRU >&2
	exit 1;
fi

# Using Official overlay, setup pin muxing to match what the HAL file expects

# Setup PWM outputs to use GPIO pins
#for FILE in /sys/devices/ocp.*/bebopr_pwm_J[934]_pinmux.*/state ; do
#	if [ -f $FILE ] ; then
#		sudo -A su -c "echo gpio > $FILE" || bebopr_err pwm: $FILE
#	fi
#done

# Setup LED with no trigger, so we can drive it with the GPIO pin
# Change this if you want the LED tied to something else (like heartbeat)
#FILE=/sys/devices/ocp.*/bebopr_leds.*/leds/bebopr\:status_led/trigger
#if [ -f $FILE ] ; then
#	sudo -A su -c "echo none > $FILE" || bebopr_err led: $FILE
#fi



